usergroup listing, show group leader etc.

[Stray]

I removed the "show group leaders" link at the bottom of the forum listing, put the link in the navbar with the name "groups" and made it so that only public usergroups are listed. What I'd like to do now is remove the "location" part and instead make it show the users position in the group. I'd like it to list people as either a member, leader or founder but if I could at least have it label the group leaders I'd be happy.
One thought I had was if I made all group leaders part of a different group called "leaders" that gave them a custom image labeling them as a leader and then made that visible in the usergroup listing. The only problem is I'm not exactly sure how to add extra things to the usergroup listing.
If anyone has any ideas I'd appreciate hearing them.
Maybe it's possible to make a usergroup hierarchy hack? That might be a valuable addition to gaming forums with multiple clans who'd like to show who fills different roles in the group.